Comparison
Sharp Thought and Phosphatidyl Serine Plus DHA
Sharp Thought (Country Life) lists 2 distinct ingredients and Phosphatidyl Serine Plus DHA (Doctor's Best) 2 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | Sharp Thought | Phosphatidyl Serine Plus DHA |
|---|---|---|
| DHA | 8 mg | 100 mg |
| Phosphatidylserine | 100 mg | 100 mg |
Amounts are per serving as DSLD gives them: Sharp Thought, 1 capsule; Phosphatidyl Serine Plus DHA, 1 veggie softgel. Current labels entered April 2025 and January 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Sharp ThoughtCountry Life: every row against all products listing it
- Phosphatidyl Serine Plus DHADoctor's Best: every row against all products listing it